System information

The Network Layer
Book Title
9-178
Figure 9-2 The AppleTalk Address Selection Process
Network Entities
AppleTalk identifies several network entities. The most elemental is a node, which is simply any
device connected to an AppleTalk network. The most common nodes are Macintosh computers and
laser printers, but many other types of computers are also capable of AppleTalk communication,
including IBM PCs, Digital Equipment Corporation VAX computers, and a variety of workstations.
The next entity defined by AppleTalk is the network. An AppleTalk network is simply a single
logical cable. Although the logical cable is frequently a single physical cable, some sites use bridges
to interconnect several physical cables. Finally, an AppleTalk zone is a logical group of (possibly
noncontiguous) networks. These AppleTalk entities are shown in Figure 9-4.
I’d like
to use
address 37
Macintosh
Macintosh
Sorry, I’m
address 37
Macintosh
How about
address 22?
Macintosh
Macintosh
Macintosh
Address 22
it is!
Macintosh
Macintosh
Macintosh